Power supply controllers

Patent metadata

Field	Value
Publication number	US-11537189-B2
Application number	US-201816980505-A
Country	US
Kind code	B2
Filing date	Jun 11, 2018
Priority date	Jun 11, 2018
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

Example implementations relate to power supply controllers. In some examples, a controller can include instructions to: set a power threshold for a power supply coupled to a computing component when the computing component is operating in a first state, determine when the computing component is alternating from the first state to a second state, and allow the power supply to exceed the power threshold for a fixed period of time in response to the computing component alternating from the first state to the second state.

First claim

What is claimed:

1. A system, comprising:
a power supply coupled to a plurality of computing components by a single power rail;
a first timer to determine a quantity of time the power supply has continuously exceeded a power threshold;
a second timer to determine a quantity of time the power supply has continuously been below the power threshold; and
a controller, comprising instructions to:
stop the first timer when the second timer has reached a first time limit;
stop the second timer when the power supply has exceeded the power threshold; and
deactivate the power supply when the first timer reaches a second time limit.

2. The system of claim 1 , wherein the controller includes instructions to:
set the first timer to zero when the second timer has reached the first time limit; and
set the second timer to zero when the power supply has exceeded the power threshold.

3. The system of claim 1 , wherein the controller includes instructions to alter a load of the plurality of computing components to prevent the first timer from reaching the second time limit.

4. A controller, comprising instructions to:
set a first timer to determine a quantity of time a power supply has continuously exceeded a power threshold;
set a second timer to determine a quantity of time the power supply has continuously been below the power threshold;
stop the first timer when the second timer has reached a first time limit;
stop the second timer when the power supply has exceeded the power threshold; and
deactivate the power supply when the first timer reaches a second time limit.

5. The controller of claim 4 , wherein the power supply is coupled to the computing component through a single power rail.

6. The controller of claim 4 , comprising instructions to alter a load of a computing component below the power threshold when the first timer reaches a second time limit.

7. The controller of claim 4 , comprising instructions to:
set the first timer to zero when the second timer reaches a first time limit; and
set the second timer to zero when the power supply has exceeded the power threshold.

8. A non-transitory machine-readable storage medium having stored thereon machine-readable instructions to cause a computer processor to:
set a first timer to determine a quantity of time a power supply has continuously exceeded a power threshold;
set a second timer to determine a quantity of time the power supply has continuously been below the power threshold;
stop the first timer when the second timer has reached a first time limit;
stop the second timer when the power supply has exceeded the power threshold; and
deactivate the power supply when the first timer reaches a second time limit.

9. The medium of claim 8 , comprising instructions to restart the first timer when the second timer has reached a first time limit.

10. The medium of claim 8 , comprising instructions to restart the second timer when the power supply has exceeded the power threshold.

11. The medium of claim 8 , comprising instructions to alter a load of the plurality of computing components before the first timer reaches the second time limit.

12. The medium of claim 8 , wherein the power supply is coupled to the computing component through a single power rail.

Assignees

• Hewlett Packard Development Co

Inventors

• Cheng Chao-Wen
• Pearson Roger A
• Bassett Jonathan D

Classifications

• G06F1/3296

  by lowering the supply or operating voltage · CPC title

• H02H3/42

  responsive to product of voltage and current · CPC title

• H02H3/087

  for DC applications · CPC title

• G06F1/28 Primary

  Supervision thereof, e.g. detecting power-supply failure by out of limits supervision · CPC title

• H02H3/093

  with timing means {(in general H02H3/027; thermal delay H02H3/085; timing means for undervoltage protection H02H3/247)} · CPC title